Interfolding machine



June l5 1926.

W. H. CANNARD ET AL INTERFOLDING MACHINE Filed Nov. 5, 1924 5 Sheets-Sheet 1 June l5 1926. 1,588,524

W. H. CANNARD ET Al.

INTERFOLDING MACHINE Filed NOV. 5, 1924 5 Sheets-Sheet 2 June 15 1926. L58524 W. H. CANNARD ET AL [NTERFOLDI NG MACHINE Filed Nov, 5, 1924 5 Sheets-Sheet 5 June 15 1926. 1,588,524

W. H. CANNARD f-:T AL

INTERFOLDNG MACHINE Filed Nov. 1924 5 Sheets-Sheet. 4

June 15 ,"1926. f 1,588,524

. W. H. CANNARD ET AL.

INTERFOLDING MACHINE` Filed-Nov. 3.. 1934 5 Sheets-Sheet 5 Patented. June 15, 1926.

,UNITED STATES I 1,588,524 PTENT OFFICE.V

l WILLIAMy H. CANNARD AND GLENN'A. SHAFFEP., or GREEN BAY, WI'sooNsIN,

- nssiGNons To SAID CANNARD.

INTERFOLD'ING MACHINE.

Appncanoii fiied'November 3, 1924. seriai No. 747,632.

This invention primarily relates to interfolding machines and, more specifically, to the rotary type thereof.

The machine here disclosed as a practical embodiment of our inventive-concept is designed to effect an interfolding of a plurality .of `sheets or strips of material, such as paper and, particularly, tissue-paper, like toiiet paper. vIts utilization is, however, notv restricted to that particular class of zHiaterial, -as it may be employed for interfolding paper towelsy andthe like, or other articles. In certain aspects, the structure of the present case utilizes' certain features of the machine disclosed in our application filedv September 29, 1921, Serial No. 504,023.` In other aspects, it is characterized by a radical departure therefrom. In the machine of our earlier application, a pair of inter,- geared rotatabe drums are employed, and on each of these is a plurality of sets of pinch-members-in the form of rotatable rolls-with means for effecting continuous' the earlier structure. It further differs from the earlier machinein utilizing aV caiii-device for controlling the action of the pinchinei'nbers or jaws. ln that respect, it more especially resembles the structure of a more recent. application filed by us August 16, 1924. Serial No. 732,422. It differs from that structure, however, in that it utilizes the cain-device for also actuating the tuckermembers.

lt may now be stated that the object of the present invention is to provide, (l) etticient means for actuating` the vise-jaws whereby they will effectually clamp and ciw-ase the folded sheets, and (2) means operating with certainty to effect a nicety of coaction between the vise-jaws on the one and creasing'operation.

theii,creased tlieiebetweeii and thereby.

Another object within the contemplation of oury invention is to provide means for synchronizing the action of the various instrumentalities on the drums, as well as the drums themselves, so as to insure a' high-v speed operation thereof and, thus, great 'efficiency of the machine and large produci tion thereby. I

Still another object, undone of a more kspecific character, is the provision of means loperating in conjunction with the pinchor vise-members whereby they automatically adapt themseliv'estoivarying thickness of the v sheetsv upon which they performa folding"1` Another object is to provide a novel means for feeding the slieetsto be interfolded from the cutting instrumentalities to l"thev inter' folding structure of the' machine. i Y

Our. inventiveconcept is susceptible of embodiment in a variety of instrumentalities; but `we have," in .the accompanying drawings, shown the samein a preferred embodiment and one which we have demonstrated as highly practical, efficient and satisfactory.

trative and that the machine, as therein revealed, is capable of a'wide range of modification and vvariation without departing from Vthe underlying principles or salient features of the invention;` and, likewise, that otherenibodiments and utilizations may be resorted to and thereof. f y

In these drawings: Figure 1 is a View, somewhat fragmentary and in sectional elevation, ofv an interfold- It is to be understood, fhow ever, that these drawings arev merely illus-4 yet be f within the spiriting machine constructed in accordance with Figs. 4, 5, (5. and T are fragmentary views,

in section andl more oir-less diagrammatic,

showing four successive positions of the vise-members and tucker-members as they .approach Vthe ycenter line of the axes of the drums, while at that line, and after passing the same, respectively;

Fig. 8 is a. view 1n. .elevation of a cam- Adevice vfor synchronizing ythe action of the vise and t-ucker-members on the companion drums with several of the successive posi- -tions of the folding instrumentalities'in relationto the center line of the axes of the drums charted thereon;

Fig. 9 is a view inperspective, partly in section, of one end of one of the vise- Vmembers;

Fig. 10 is a similar view -of one endof one of the tucker-members;

that their axes yextend in parallelism with each other andare disposed on a common center-line CL. These drums are 1nte r geared at one end to effect their rotation 1n unison and in opposite directions. 'Any appropriate meansmay be employed for pro- .ducing therequired rotative movement of the drums, such as a sprocket 4 operating a gear 5 on the drum 2, the sprocket being driven from a prime-mover (not shown).

' Each drum is, preferably and as shown,

Vprovided with a series of longitudinall extending, peripheral recesses 6 and 7. ach recess -is circular in form to constitute a member-housing, for a -purpose presently to be explained.

Pinch-nszfWmentat8.-Movably mounted in each of the recesses or housings 6 is an annulus or substantially .C-shaped visemember 8, of slightly less external diameter than that of the internal bore of the housing so. that it has a rotative fit therein. It is held against movement in one direction by4 stops or abutments 9 (Figs. 3, 11 and 12) at the .ends of the drum- Preferably and as shown, each stop 9 comprises a plate set into the periphery of the drum, at the end thereof, and having an integral portion 9 which extends inwardly from the body of the plate and longitudinally ofthe drum to engage the end portion of one of the flat longitudinal lfaces of the C-shaped member 8. Normally. this vise-member 8 is held against the stops iby a spring-pressed plunger 10 ksure of sprin mounted in a small chamber 11 in the drum and seated in an angular recess 11', in the periphery of the member. By reason of the pressure developed by the spring 12 that forces the forward edge or corner of the plunger 10 into the substantially V-shaped recess 11', the vise-member is normally held against its limit-stops 9 and is what we shall herein refer to as the stationary vise-member. The plunger permits it to have a slightly yielding action in opposition to the pres- 12, counter-clockwise on roll 2 and clockwise on roll 3, as viewed in Fig. 3, for instance. Rotatively mounted within the bore of the annular vise-member 8 is what we shall herein refer to as a movable vise-member 13 having an elon standing engaging-portion 14 almin vise-member. vise-member is a roller-carrying crank 16 adapted to coact with one of a pair of camslots or grooves 24 in a cam-devicel7, presently to be described, and which constitutes a component of a. member-synchronizing mechanism, also to be described hereinafter. lt is to be understood that the vise-members 8 and 13 constitute a set; and it is also to be understood that there are, in this instance, three. sets of these on each drum, all operating in the same manner, periodically, for a sheet-interfolding operation.

Tucker instrumentalz'tz'es. Mo v a bl y ted out-- with' an engaging-portion l5 on the stationaryr On one end of this movable` mounted in each of the housings 7 is a tuckerymember 18 comprising (preferably and as shown) a two-part supporting-element or rod Y19, the parts thereof beingv secured together by bolts 2O and clamping between thema plate 21, one edge 22 of which projects beyond the periphery of the element 19 and constitutin'g the effective or working instrumentality of the tucker-member. On one end of the supporting-element is a crankarm 23 adapted also to coact with one of the slots or grooves 24 in the aforementioned cam-device 17, and whereby the tucker-member is oscillated or rocked on its axis for a partial revolution. It is to be noted that there are three of these tucker-members on each drum and that they alternate with the three sets of pinch-members thereon.

Syncwom'zz'n-g mechanism-We have already referred to this mechanism as involving (as one of its components) the cam-device 17. There are two cam-slots in this device, one for each drum, mounted adjacent the end thereof and encompassing its axis. Each cam is stationary .relatively to its respective drum and, to that end, is suitably secured to the drum-support. As shown in Figs. 2, 3 and 8, it` comprises a plate provided, at opposite sides, with the cam-groove 24 which involves a circular section 25, two angular sections 26, 27, and two slightly ofi"- set sections 28 and 29 at the points where the circular section joins with the angular sec.- tions, respectively.v It will be understood that the roller-carrying crank-arms 1G- land cessively and are thereby actuatedrto canse niovenieiitsof those members in a manner presently to be explained.

Feeding, cutting andv guiding wien/ia-A m's1iis.-Tli e yvebs or strips of .material-Y such as tissue paper-to be cut Aand interolded are drawn from rolls (not shown) and are fed'tby rubber coveredfeeil-rolls 30, 30,) betvveenthe cutting devices, coin-v Y prising (in this instance) two sets ot rollers,I

31, 31, and32, 32; thencef(through a paperguide generallvvinarlte-d 33) to and by the center-line CL.L vThe cutting-device foreach web-Where, as here, there arctwof webscoinprisesa cutter-carrying roll 3l having a radially extending cutter 34, and a coinpanion-roll 32 provided lwith a cutter. registering recess 35. .This mechanism is driven by a gear-36 and a sprocket chain37; Coiil nected to the recessed Arolls 32 are sprocket chains 38 whichpass around rolls 3S and'A constitute Va part of the paper-feed of the sheets-now machine. The two vsevered ready to be vinterfolded togethei so thatthe leading end of one is broughtinto register with the fold in the other by the treatment] to which the sheets will then beisubjected are directed by the paper-guide 33 (including its spaced-apart elements 3 9', 39) to the interfolding instruinentalities.I n A.

`Ope-ration-The law of operation of our inachine, as already described, is (so far as we are aware) quite unique, and we attribute the successful action thereof and the satisfactory results attained thereby to that. fact. At any rate, it may/,here be mentioned that, in the interfoldiiig of very thin material,

such as tissueV and toilet paper, there are robleiiis involved which have mechanical been solved y ns and successfully niet iii the. structure constituting the subject-iiiatter of the present case. Referring now, briefly, to the` inodus operandi of the machine', we will assume that the two webs of paper have been severed into lengths in such manner'l that the leading-in endv of the second sheet is about central of the preceding sheet and,l thus` in position to becomeV inserted in the sheet-engaging face of the movable visenieinber, it inoviiig during this stage toward :the working face of theotlier vise-iiienibcr. 23 of the vise and tuclcer-inembers. rcspcc-M tively`l traverse these several sections .suc-f As the drums continue iii their rotation, .these saine inciting instruiiiciitalitics are thereby brought into the position illustrated `in Fig. 5, at which time the vise-members tion indicatedinFig. (i, the tucker-blade ivill'be 'positioned .to coincide with the center line CL, the vise-Jaws will then be entirely ""closefdj'and be clamping` the` two sheetsagainst the tucker-blade, and the movable vi'se-inei'nber will be Apushing upwardly and Y hard against the other vise-meinber which in turn (by reason of the action of the plunger bearing against it) may yield slight- `-ly but at the saine ltime function, in con- IjunctioiiM-'ith the other instruinentalities, to produce apronounced crease in the sheets vno matter how thin they may be. In other words, these vinstruinentalities will, when they reach a Vposition coincident'with the centerline CL, etfectually acconiplislithe the continuedfrotation of thefdrnins, the then active tut-.king land folding instrumenr line and to the position indicated in Figi'. At that point, thel separation of the trickerblade from the vise-members will have been eleeted and separation of d the vise-members will have voccurred so that, then, the folded "folding and -creasing ofthe two sheets;V By

talities wil'l'be carried away froin the center .Sheets'ivill be "released therefroin intov a chute '40 and thereby .'be directed to a conveyor "('not showii)l The successive action thereon 'by the described parts is'such that the succeeding sets of sheets will have become folded with each other, that is, interfolded;

and,lthen, be' thereby transported away from the interfolding zone.

Itwill have been'understood from the explanation heretofore given, first, that the V'cani-grooves 24 in the cani-device 17 will have liiifiiienced their respective tuclter-instrumentalities astheir vroller-carrying crank-arms 1G and 23'travel in such grooves and come4 under the effective action o f--the various sections thereoand as charted in Fig. S; and,` secondly, that each tricher-member on each drinn perforiiisfthe saine? function in relation toits respective set of vse-iiieinbers as vthat lalready described.: Each 'drun'i makes,

c'ontiniiouslyfa cycleof movement; each set of cranltaiins in eac'h of the cams likewise :makes a cycle; vthese cycles are correlated;

and.' as the driinis are intergeared and inasninch as their. respective synchronizing lmechanisms'are'coordinated` it follows that iiiifV ations at each revolution of the drums. It desired, an increased number of the tucking and creasing instrumentalities could be included and, thus, augment the capacity of the machine. However, as at present designed,'t`he machines production is many hundred intel-folded sheets per minute and,

therefore, sullicient for all practical requireing and eomprehending any appropriate type of rotatable frame or carrier; that the terms tucker and tucker-lniember (as herein used) are to be interpreted as involving any suitable type ot tucking instrumentality capable of coacting with pinchmembers in the mannei herein delined; that the terms vise-members, pinch-members, and the like, are to be interpreted as iiivolving any suitable type of structure capable of the action and the coactioii with the hereindefined tucker that are defined in the foregoing; and that expression intergeared, as referringto the drums, contemplates any practical means of connecting the drums for effecting their related cycles of operation. The feeding, cutting, and delivery structure herein revealed may be replaced by others of:-

appropriate character. V'l` hey are not herein specifically described since they are to constitute the subject-matter ot another application.

What We claim is:

1. A machine for interlolding sheets of paper and the like, including a plurality of intergeared drums, having their axes disposed on a common center line, means for effecting' rotation ot the drums in opposite directions, a plurality of sets of oscillatable pinch-members on each drum, mechanism associated therewith for effecting an opening and closing of the members ol" each set during rotation of the drums and in predetermined relation to the center line 'of the axes of the drums, a plurality of oscillatable tricher-members on each drum in alternate arrangement to sets of pinch-members thereon, mechanism associated therewith for controlling relative movement of each tuck-erinember to position it at a predetermined time' in definite relation to said center line. and means common to both of said mechanisins for actuating the pinch-members ot' a set and forgoverning the movement of a tuclrer-mei'nber whereby the latter -will be projected between but Without any substantial binding etlect on the pinch-inembers and f the latter be closed upon the tueker-member when said members reach a predetermined point in'respect to said center line of the drums. I

2. A machine for intert'olding sheets of paper and the like, including a plurality. of intergeared drums, having their'axes disposed on a common center line, means for effecting rotation of the drums in opposite directions, 'a plurality of sets of oscillatable pinch-members on each drum, a. member of each set having an approximately flat-paperengaging surface, mechanism associated therewith for eli'ecting an opening and closing ot' the members of each set during rotation of the drums and to position said paperengaging surface in substantial parallelism with said center line in predetermined relation to the center line of the axes' of the drums, a plurality of oscillatable tuckermembers on each drum in alternate arrange.- ment to sets of pinch-members thereon, mechanism associated therewith for controlling relative movement of each tucker-inember to position it at 'a predetermined time in vdefinite relation to said center line, and

means common to both of said mechanisms for actuating the pinch-meinbers of a. set and for governing the movement of a tuckermember whereby the latter will be projected between but Without any substantial binding effect on the pinch-members and parallel with said -lat surface of one of said members, the latter being then closed upon the tucker-member when said members reach a predetcrn'iiued point in respect to said center line.

3. A. machine for interfoldingsheets of paper and the like, including a plurality of intergeared drums, having their axes disposed ou a common center line, means for etl'ecting rotation of the drums in opposite directions, a plurality of sets of oscillatable pinch-members .on each drum, a member of each set having an approximately fiat paper-engaging surface. mechanism associated therewith for eti'ecting an opening and closing of the members of each set dui'- in;y rotation ot the drums and to position said'paper-engaging surface in substantial parallelism with said center-line, in predetermined relation to the centerline of the axes of the drums, a plurality of oscillatable tuckeruneinbers on each drum in alternate arrangement to sets of pinch-niembers thereonmechanism associated therewith for .controlling rotative movement ot' each tuclter-membcrto position it at a predetermined time in definite relation to said center line. and means conmion to both of said mechanisms for actuating the pincirmembers effecting rotation of the drums in opposite directions, a plurality of sets of oscillatable pinch-members on each drum, one member of each set being relatively stationary and having an approximately ,flat paper-engaging surface, the other member thereof being.

movable in relation thereto and having a clamping action thereon, mechanism associated therewith for effecting an opening and closing of the members of Aeach set during rotation of the drums and in predetermlne l relation to the center li'ne of the axes of the drums, a plurality of oscillatablev tuckermembers on each drum in alternate arrangement to sets ot pinch-members thereon, mechanism associated therewith for controlling relative movement yof each tucker-member to position it at a predetermined time in definite relation to said center line,` and means common toboth of said mechanisms for actuating the pinch-members of a set and for overning the movement of a tuckermemer whereby the pinchjmembers will first be opened, then the tucker-member on the companion-drum be projected between the members and in sliding contact Wlth said paper-engaging surface, and then the movable member be clamped against the tuckermember.

5. A machine for interfolding sheets of paper and the like, including a plurality of intergeared drums, having their axes disposed on a Vcommon center line, means for effecting rotation of the drums in opposite directions, a pluralityof set-s ofoscillatable pinch-members on each drum, one member of each set being relatively stationary and having an approximately flat paper-engaging surface, the other member. thereof being movable in relation thereto `and having a clamping action thereon, mechanism associated therewith for effecting an opening and closing of the members votfeach set during rotation of the drums and in predetermined relation to the center line of the. axes of the drums. a plurality of oscillatable tuckermembers on each drum in alternate arrangement to sets of pinclrmembers thereon, mechanism associated therewith for controlling relative movementvof yeach tucker-member to position it at a predetermined time in definite ,relationA to said center line, and means common to bothl of said mechanisms for actuating the pinch-members of a set and for overning the movement lof a tuckermem er whereby the pinch-members will 'first be-opened, then the tucker-member on the companion-drum be'projected between the members and in sliding 'contact with said paper-engaging'surface, and then the movable member be clamped against the tuckermember 'and then opened to a paper-releasing position when the drum carrying it has reached a 4predeterminedy point in its rotation.'

6.'An interfolding `machinev including companion supporting drums, the axes of which are disposed on a common centerline, a set of oscillatable vise-members on each drum, one member of the set being izlatively movable in respect to the'other member of the set, mechanism associated with each movable member :for actuatingit away from its companion member, an oscillatable tuckermember on each drum adapted to coact with the vise-members on the other drum, and mechanism associated with the tucker-member for positioning it between the vise-niembers, said tucker-niember while moving with 'v its supporting-drum having a relative movemoving with their supporting drum and means common to said mechanisms, associated with each drum'for controlling both of said mechanisms.'` n 7 vAnv interfolding machine including companion supporting drums, the axes of which vare disposed on-a common center line, aset of vise-members on each drum, one member of the set being relatively movable in respect to the other member of the set, mechanism associated with each movable member for actuating it away from its companlon member, an oscillatable tucker-member on each drum adapted to coact with the vise-members on the other drum, and mechanism associated with y the sucker-member for positioning it between the vise-members, said tucker-member while moving with its supporting-drum having a relative movement in respect to and a sliding action on -one of the vise-members while these members are moving with their supporting drum, and means active on one of the vise-membersifor yieldingly pressing the same against the tucker-member while in coacting relation to the vise-members.

8. An interfolding Y machine including companion supporting drums, the axesl of which are disposed on a common center line, a set of vise-members on each drum, one member of the set being relatively movable in respect to the other member of the set,

lmechanism associated with each movable member for actuating it away from its com- "panion member, an oscillatable tucker-inember on eac-h drum adapted .to coact with the vise-members on the other drum, andmechanism associated with the tucker-member' for positioningit between` the vise-members, said tucker-member while moving with its supporting-drum having a relative move-l 9. An. interfolding machine :including companion supporting drums, the axes of` which aredisposed on a common centerline,

a set of vise-members on each drum, one member 'of the set being relatively movable in respect tothe other member of the set, mechanism v'associated with each movable 4 member for actuating it away from its comfor positioning it between the vise-members, l.

panion member, an oscillatable t-ucker-member on each drum adapted to coact with the vise-members on the other drum, and mechanism associated with the tucker-member said tucker-member while movingwith its supporting-drum having a relative movement in respect to and a. sliding actiony on one of the vise-memberswihile these members are moving `withtitheir;Supporting,

drum, and means active fononjer'ofthe visemembers for yieldingly pressingithe: 4same against the tucker-member wfhilein coacting relation to the vise-members, and means common to both of said mechanismsl for' effecting a synchronized lactuation ofthe movable vise-member and the tucker-member in predetermined relation to said center line whereby vise and tucker members are, respectively, given cycles of movement during which the movable vise-member is first moved away from its companion member to open the vise-members, the tucker-member is then positioned between the members with a sliding contact therewith, to tuck sheets of paper therebetween, the vise-members are then closed with the movable member yieldingly clamping against the tucker-member to crease the sheets, the tucker-membe is then withdrawn from betweenthe vise-members, and the vise-members then opened to release the 'folded sheets.-

l0. An interfolding machine including companion supporting drums, the axes of which are. disposed on a. common center line, a set ot vise-members on each drum, one member of the set being relatively movable in respect to the other member of the set, mechanism associated with each movable member `tor actuating it away from lits companion member, an oscillatable tuckermember on each drum adapted to coact with the vise-members' on the other drum, and mechanism associated with the tuckermember for positioning it between the visemembers, said tucker-member while moving with its supporting drum having a relative movement in respect to and a sliding -action on one ot the vise-members while these members are` moving with their supporting drum, and means active on one of the visemembers for yieldingly pressing the same against the tricher-member while in coacting relation-to the vise-members, and means common, to both ot said mechanisms for effecting a Vsynchronized actuation of the movable vise-member and the tucker-member in predetermined relation to said center member is then positioned between the members with a sliding contact therewith, to tuck sheets'of paper therebetween, the vise-members are then closed with the movable member yieldingly clamping against the tucker-member to crease the sheets, the tucker-member is then-withdrawn from between the vise-members, andthe vise-members then opened to release the folded sheets, andV means for effecting rotation of the drums periodically to bring the vise and tucker members into coactive relation I 11. An interfolding machine including companion lsupporting drums,-the axes of I which are disposed on a common center line,

a set of vise-.members on each drum, one member of the set being relatively movable neA in respect to the other member of the set,

mechanism associated with' each movable member for actuating it away from its comanion member, an oscillatable tucker-menier on each drum adapted to coact with the vise-members on the other' drum, and mechanism associated' with the tncker-member tor positioning it between the vise-members` i said tucker-member while moving with its supporting-drum having a relative movement in respect to and a sliding action on one of the vise-members while these members are moving with their support-ing drum,

and means active. on one of the vise-incur.

drum.

vthen withdrawn from between the vise-members, and the vise-members then opened to release the folded sheets, and means For effecting rotation ot' the drums periodically to bring the vise and tur-ker members into coactive relation, said rotative movement of the drums rendering said mechanisms active to actuate the vise and tucher members both to position them relatively and, also, to effect their coaction.

12.` In an interfoldingr machine, a drinn, means for rotating it, a set4 ot oscillatable vise-members thereon, one of which is relatively stationary and the other movable in respect thereto, means for actuating the one member toward and from tlie4 other, and mechanism associated with one of the members and having a normal tendency lto move the same with pressure toward theother member. ,y v

13. In an interfolding machine, a drum, means for rotating it, a set of oscillatable vise-members thereonfone of which is relatively stationary and the other movablein respect thereto, means for actuatino the one member toward and from the other, and mechanism associated with one ofthe members and having a normal tendency to move the same with pressure toward the other member, and a tiicker-member movable on an axis in parallelismy with the axis' ot the 14. In an interfolding machine, a drum, means for rotating it, a set ofy oscillatable vise-members thereon, one of which is relatively stationary and the other movable in respect thereto, mea-ns for actuating the one member toward and from the other,` and mechanism associated with one ot' the members and having a normal tendency to move the same with pressure toward the other member, and a tricher-member movable yon an axis in parallelism With the axis of the drum, and mechanism constantly active on thetucker-member for positioning it in vpredetermined relation to the axis Vof the drum.'

15. In an interfolding machine, a digi-ini, means for rotating it, a set of visc-meiiibers thereon, one of which relatively` stationary and thel other movable in respeettbereto, means for actuating the one member toward and from the othelr` and mechanism associated with one ot" the ymembers and having* a normal tendency to'move the'same with pressure toward the other member, and a tucker-men'iber rotatable on an axis in parallelism with the axis of the drum. and mechanism constfintl)7 active on the tuckermember tor positionnii,r it in predetermined relation Vto the axis ot the drum. and causing it to have a. sliding movement on one of the. vise-members. Y

lo. In an intertoldingr machine, a drum, means for rotating it, a set or' vise-members thereon, one otwhich is relatively stationary and the Aother movable, in respectthereto, means tor actuating the one member toward and from the other, mechanism associated with one of theniembers and having a normal tendency to move the same with pressure t0- ward the other member and a tucker-mem-'- her rotatable on an axis in parallelism with the axis of the drinn, and mechanism constantly active on the tucker-i-nember for positioning it in predetermined relation to the axis of the drum and causing it to have a slidinlgr movement on one of the vise-members, fand means common to both mechanisms for synchronizing the action of the vise and tucker-members to insure the timely projection between and Withdrawal ofthe tucker-member from the active faces of the vise-'members when said members have a definite relation to the horizontal plane of the drum.

17. In an interfolding machine, a drum,

means jfor rotating it, a set of vise-members thereon, one of which is relatively stationary and the other movable in respect thereto, means for actuating the one member toward and from` the other, and mechanism associated with one of the members and havinga normal tendency to move the same with pressure toward the other member said means `comprising a roller-carrying cra-nkarm.

i 18. In an interfolding machine, a drum,

means for rotatin it, a set of vise-members thereon', one of w ich is relatively stationary and the other movable in respect there-l ing it to havey a sliding movement on one of the vise-members said means comprising a roller-carrying -crank-arm.

v1t). In an interfolding machine, a drum,

means for rotating it, a set of vise-members thereon, one of which is relatively stationary and -the other movable in respect thereto,l

means tor 'actuating the one member toward and t'rom the othei` and mechanism assoelated with one ol' said-members and havinga norn'ial'tendciicy tomove the same withA pressure toward the ,other member, said meansl com rising a roller-carrying cranlrarm, a tue rer-member movable on an axis iny 'parallelism with the axis of the drum,

mechanism constantlyv active on the trickermember for positioning 1t in predetermined relation to the 'axisof the drum, and causing it to have a sliding movement on one of' the vise-members and comprising a rollerdefinite relation `to the horizontal plane of the drinn.v l

.20. An interfolding machine including companion carriers, 'each rotating on an axis parallel to that of the other, a set of -vise-members on each carrier, at least'one of .which members is movable relatively, a tucker-member on each carrier adapted to coact with the vise-meinbers on the other carrier, and means adjacent one end of the f carriers and encircling thevaxes thereof for leo synchronizing the action of a tucker-member on one carrier and the movable visemember onthe other and including meansfor effectingy rotation of the carriers in opposite direction, and instrumentalities kconnected with the tucker and vise-members and inlu'enced by the synchronizing means to opcrate those members periodically at predetermined lpoints in the rotation ofthe carriers, whereby the tucker-member on lone carrier is positioned to permit introduction of its tucking part opposite to, then in between,and then out from, the jaw-members,

and at the same time, the vise-members are positioned for their coaction with the .tucker-member and the movable member is actuated in respect to the tucker-member.

21. An interfolding machine including' companion carriers, each rotatingon an axisparallel to that of the other, these axes being disosed on a common center line, a. set of vise-members on each carrier, atleast one of which members is movable relatively, a vtueker-niember on each carrier adapted to coa-ct with the vise-members on the other carrier, and means adjacent one end of the carriers andencircling the axes thereof for i synchronizing the action of a tucker-meinber on one 'carrier and the movable vise-member onv the other and including means for e'li'ecting rotation of thecarriers lin opposite directions,vand instrumentalities connected rwiththe tucker and vise-members and influenced by the synchronizing means to operate those membersperiodically at predetermined points in the rotation of the carriers, whereby the tucker-member on one carrier isy positioned at said center line to permit introductionoic its tucking art opposite to, then in between, and t en out from, the jaw-members and, at the same time, the vise-members are positioned at the center line for their coaction with the tucker-member and the movable member is actuated in respect to the tricher-member.

22. An interfolding machine, including companion carriers, each rotating on an axis parallel to that of the other, a. cam-device adjacent one end ot each carrier and encircling its axis, a set of vise-members on each carrier, at least one of the members of the set being relatively movable, means carried by such movable member and tracking on the cam-device toi effecting relative movement between the members of the'set to open and close them periodically, a tucker-member on each carrier adapted to coact with the vice-members on theV other carrier, and means carried by the tuckermember and tracking on the cam-device for positioning it periodically for its coactive relation to the vise-members,v

`23. An interfolding machine, including companion carriers, each rotating on .an axis parallel to that of the other, a cam-device adjacent oneend of each carrier and encircling its axis, a set of vise-members on eac-l1 carrier, at least one of the members of the set being relatively movable, means carried by such movable member and tracking on the cam-device for effecting relative movement between the members of the set to open and close them periodically, a tricher-member on each carrier adapted to coact with the vise-memberson the other carrier, and means carried by .the tucker-member and tracking on the cam-device for positioning vit periodically for its coactive relation to the vise-members, the coaction of the trickermember on the one carrier with the visemembers on the other carrier alternating with similar coaction between the tue-kermeinber on that carrier and the vise-members on the companion carrier.

24. An -interfolcling machine, including companion carriers, each rotating on an axis parallel to that of the other, a cam-device adjacent one end of each carrier and encircling its axis,V a set of vise-members on each carrier, at least one of the members of the set being relatively movable, means carried by such movable member and tracking on the cam-device for effecting relative niovement between the members of the set to open and close them periodically, a. tricher-member on each carrier adapted to coact with the viseanembers on the other carrier, and `means carried by the tricher-member and tracking on the cani-device for positioning it periodically for its coactive relation to the vise-members, the coaction of the -Ielation to of the tucker-member on the one carrier with. the vise-members on the'other carcompanion carriers, each rotating on an axis parallel toV that of the'v other, acam-device adjacent one end ot' each. carrier and encircling its axis, 'a set of vise-members on each carrier, at least one of the members of the set being relatively movable, means carf ried by such movable member and tracking on the cam-device for effecting relative movementv between4 the members of the set' to open and close them periodically, a-tuckermember on each carrier adapted to coact 'with the vise-members on'theother carrier,

and means carried by the tucker-member A and tracking on the cam-device for positioning it pleriodically for its coactive e vise-members, the coaction rier alternating with similar coaction between the tucker-member on that carrier and the vise-members on the companion carriers, and means active on the movable vise-memy ber to press it toward and against the tuckeri. member during the ooactive relation between it and the vise-members.

26. An yinterfolding machine, including companion carriers, each rotating on a-n axis parallel to that of the other, a cam-device adjacent oneend of each carrier and encircling its axis, a set of msc-members on each f carrier,I at least' one of the members of the set being relatively movable, means carried by such movable member and trackingon the cam-device for eiectin relative movement between the members o the set to open and close them periodically, a tucker-member on each carrier adapted to coact with the-visemeinbers on the other carrier, and means carried by the tucker-member and tracking on the cam-device for positioning itperiodically for its coactive relation to the vise-members, the coaction of the tucker-member on the one carrier with the vise-members on the other carrier alternating with similar coaction be- Y tween thc er-member on that carrier and the vise-members on the companion carrier, and resilient means active on one of said vise-members to press it toward and against the lrucker-member during the coactive relation between it and the vise-members.

2T. An interfolding machine, including companion carriers, each rotating on an axis parallel to that of the other, a cam-device adjacent one end of each carrier and encircling its axis, a set of vise-members on 'of, t heicoaction of the (zucker-member on the each carrier, at least one of the members of the set beingrelatively movable, means carried by such movable member ,and tracking on the cam-device for effecting relative movement between the members of the. set to l open and close them periodically, a tuckermember on each carrier adapted to coact with the vise-members on the other carrier land comprising -an oscillatable supportingelement and a blade thereon, and means carried by theltucker-member and tracking on the cam-devicefor positioning its blade periodically between xthe vise-members for a sliding movement therebetween 'and radially thereof, the coaction of the tucker-member on' the one carrier with the vise-members on the other carrier alternatmg with simi- 'lar coaction between the. tucker-member on that carrier and the vise-members on the companion carrier. 85 28. AnA interfolding machine, including companion carriers, each rotating on an axis parallel to that of the other, a cam-device adjacent one end of each carrier and encircling its axis a set of vise-members on each carrier, at least one of *the members of the set being relatively movable means carried by such movable member and tracking 0n the cam-device for efectin relative movement between the members o the set to open and close them periodically, a tucker-member on each carrier adapted to coact with'the vise-members on-the other carrier and comprising an oscillatable supporting-element and a blade thereon, and means carried by the tucker-m'ember and the tracking on the cam-device for positioning its blades periodically between the vise-members for a sliding movement therebetween and radially thereone carrier with the vise-members on the 1 other carrier alternating with similar coaction between the tucker-member on that carrier and the vise-members on the companion carrier, and means active onthe movable vice-member for npressing it`against the blade during its perio cal engagement therewith.

29. In an interfolding machine, associated carriers having related cycles of movement, a cam-device cooperatively juxtaposed to each carrier, sets of vise and tucker members on each carrier, and operating arms connected to the members and traversing the cam-devices juxtaposed to the respective carriers and influenced thereby to effect lthe periodical coaction duringfmovement of the carriers, of the members on adjacent carriers.

30. In an interfolding machine, associated carriers having related cycles of movement, a cam-device cooperatively juxtaposed to each carrier, sets of vise and tucker members on each carrier, and operating arms connected to the members and traversing the cam-devices and influenced thereby to effect their periodical coaction during movement 130 iin each carrier, sets of vise and Itucker mem` bers on each carrier, and operating arms connected to the members and traversing the cam-devices and influenced thereby to ,effect their periodical coaction during movement of the carriers; said vise-members including a C-shaped element and a movable element housed therein, each element having selfengageable positions, adapted to against the tucker-membe'r.

32. An interfolding machine including companion supporting drums, the axes of which are disposed on a common center line; a set of oscillatablevise-members on each drum, one member of the set being relatively clamp y movable in respect to the other; mechanism associated with the movable member for actuating it away from. its companion member; a movable tricher-member on each drum adapted to coact with the vise-members on the other drum; mechanism associated with the tucker-member for actuating it to po- Vsition it between the vvise-members, said tricher-member while moving with its supporting drum having movement in respect to and having engaging action on one of the vise-members While these members are moving with their supporting drum; and means common to said actuating mechanisms for simultaneously controlling them to time their action 1n respect to their respective vice-members.

In testimony whereof we aix our signatures. 

